Regio- and Stereoselective Hydroamination of Alkynes Using an Ammonia Surrogate: Synthesis of N-Silylenamines as Reactive Synthons

被引:32
作者
Lui, Erica K. J. [1 ]
Brandt, Jason W. [1 ]
Schafer, Laurel L. [1 ]
机构
[1] Univ British Columbia, Dept Chem, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
RING-TRANSFORMATION EQUILIBRIUM; SPONGE ALKALOID CERATAMINE; C-H ACTIVATION; INTERMOLECULAR HYDROAMINATION; IMIDO COMPLEXES; REVERSIBLE 1,2-RH-ELIMINATION; CATALYTIC HYDROAMINATION; N; N-BIS(SILYL); ENAMINES; HYDROCARBON ACTIVATION; EFFICIENT SYNTHESIS;
D O I
10.1021/jacs.7b13783
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
An anti-Markovnikov selective hydroamination of alkynes with N-silylamines to afford N-silylenamines is reported. The reaction is catalyzed by a bis(amidate)bis(amido)Ti(IV) catalyst and is compatible with a variety of terminal and internal alkynes. Stoichiometric mechanistic studies were also performed. This method easily affords interesting N-silylenamine synthons in good to excellent yields and the easily removable silyl protecting group enables the catalytic synthesis of primary amines.
引用
收藏
页码:4973 / 4976
页数:4
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